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Details

Knee and Leg Muscle Actions
Knee and Leg Muscle Actions
23
Medical
Professional
11/10/2011

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Cards

Term
Gluteus Maximus
Definition
Extends and externally rotates the hip, stabilizes the hip in both sagittal and coronal planes
Term
Tensor Fasciae Latae
Definition

Tenses the fascia lata

Abduction, flexion and internal rotation of the hip joint

Term
Gracilis
Definition
Flexion and internal rotation of the knee join
Term
Adductor Magnus
Definition
adduction, external rotation, and extension of the hip join
Term
Adductor Longus
Definition
Adduction and flexion (up to 70 degrees) of the hip joint (extends past 80 degrees)
Term
Sartorius
Definition
Flexion and internal rotation of the knee joint
Term
Quadriceps
Definition
extension of the knee joint, prevents entrapment of the capsule
Term
Biceps femoris
Definition
Flexion and external rotation of the knee joint
Term
Semimembranosus
Definition
flexion and internal rotation of the knee joint
Term
Semitendinosus
Definition
flexion and internal rotation of the knee joint
Term
Fibularis Longus
Definition
Everts leg and ankle, supports transverse arch of the foot
Term
fibularis brevis
Definition
Eversion of leg and ankle, plantar flexion
Term
fibularis tertius
Definition
eversion of the leg and ankle, dorsiflexion of foot
Term
Tibialis Anterior
Definition
dorsiflexion of the foot
Term
Extensor digitorum longus
Definition
Dorsiflexion and pronation of foot
Term
Extensor Hallicus Longus
Definition
Dorsiflexion of foot
Term
Gastrocnemius
Definition

Flexion of knee joint

Plantar flexor of Ankle

Supination of foot

Term
Soleus
Definition

Plantar flexion of ankle

supination of foot

Term
Popliteus
Definition
Flexion and internal rotation of the knee joint (stabilizes knee), hyperextends your knee and locks it
Term
Plantaris
Definition
support muscle to prevent compression of posterior leg during knee flexion
Term
Tibialis Posterior
Definition

Primary Plantar flexor

foot inversion (supination)

Supports longitudinal and transverse arches of the foot

Term
Flexor Digitorium Longus
Definition
Flexion of the 2-5 toes
Term
Flexor Hallicus Longus
Definition

plantar flexion of big toe

supports medial longitudinal arch of the foot

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